Key Findings
CNET has released a comprehensive review of the best Continuous Glucose Monitors (CGMs) for 2026, featuring leading products such as Abbott’s Freestyle Libre 2 and 3 Plus, Dexcom G7, and notably, “Stelo by Dexcom.” Stelo, approved by the FDA in 2024 as the first over-the-counter (OTC) CGM in the U.S., is highlighted for its seamless integration with the Oura ring, a factor expected to significantly accelerate CGM adoption among a broader user base, including non-diabetic individuals.
Technical / Clinical Details
The reviewed CGM devices continuously measure glucose levels in the interstitial fluid via small sensors inserted under the skin, providing 24/7 real-time glucose fluctuation data that traditional finger-prick tests cannot capture. Abbott’s Freestyle Libre 3 Plus focuses on further miniaturization and high accuracy, offering a 14-day wear period. The Dexcom G7 is characterized by its compact size, ease of application, and reduced warm-up time (30 minutes). “Stelo by Dexcom” stands out for receiving FDA approval as the first OTC CGM, significantly broadening access to individuals interested in glucose management, even if they don’t have diabetes. Stelo integrates with the Oura smart ring, combining glucose data with sleep and activity metrics to offer more holistic health insights. All these devices synchronize with smartphone apps and Apple Watch via Bluetooth, keeping users informed about their glucose status at all times.
Background & Context
The market for glucose monitoring is expanding rapidly, driven by an increasing number of diabetes patients and growing health awareness. Traditional finger-prick blood glucose testing is painful, difficult to perform frequently, and provides only fragmented data. The advent of CGM solved these problems, reducing patient burden while providing more detailed glucose patterns, thereby dramatically improving the quality of diabetes management. Stelo by Dexcom’s OTC approval marks a significant turning point, pushing CGM beyond medical devices into the general wellness market. This provides a new option for individuals seeking to understand how glucose fluctuations affect weight management, energy levels, and exercise performance.
Strategic Significance & Outlook
The CGM market is projected to accelerate further, fueled by the introduction of OTC products like Stelo and integration with other wearable devices. Technological innovation will continue with the development of multi-analyte sensors (measuring ketones, lactate, etc., alongside glucose), extended sensor wear periods (up to 21-30 days), and the integration of optical glucose sensors into smart rings and smartwatches. Consequently, CGM is expected to become an indispensable tool not only for improving the quality of life for diabetes patients but also as a foundation for preventive medicine and personalized nutrition and fitness strategies. Data security and privacy protection, along with further sophistication of AI-driven data analysis, will be key to future technological advancements.
Source: https://www.cnet.com/health/medical/best-continuous-glucose-monitors/
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